external paint

I live in a 3 bed 1930s semi detached I got my house painted and the area on and below DPC was painted in Zinsser all coat. I am now trying to remove this paint so I can get it repointed in lime mortar and make it breathable. Then get a aco drain fitted due to floor level. I have used home...

I'm a bit new to DIY exterior painting, so I'd appreciate some advice. I'm repainting a timber exterior door and frame. 1) The door gets slammed a lot, so I want a filler/paint system that will withstand the vibrations as much as possible. 2) I say 'exterior', but it is under an open awning...